Unmotivated, Lazy, Back to Where I Was

I'm doing it all over again and it's finally my last semester. I know it's my last semester, it just doesn't feel like it. I'm finding it increasingly hard to go to class again and I'm nowhere near as active as I want or need to be. I'm finally so close to being done but there's still so much to do and I've been going for years now. How can I get myself going? How do you get yourself going when you need to?